Nut-lock.



H 2 ,096. PATENTBD AUGI. 7, 190's.

B. w. DIGKBN. NUT LOOK.

APPLIOATION FILED NOV-1. 1965, v

ms PETERS co BERT, DIGKEN, OF TERRE HAUTE, INDIANA, ASSIGNOR OF ONE-HALF TO HENRY D. MAYROSE, OF TERRE HAUTE, INDIANA.

NUT-LOCK.

' Specification of Letters Patent.

Patented Aug. '7, 1906.

A nman filed November 1,1905. Serial No. 235,409. i

To all whom it may concern:

Be it known that I, BERT W. DIGKEN, a citizen of the United States, residing at Terre Haute, in the county of Vigo and State of Indiana, have invented a new and useful Nut-Lock, of which the following is a specification.

My invention relates to improvements in nut-locks, and pertains more particularly to those used on railroads for locking the nut on the bolt of the rail-joint.

The object of my invention is to provide a nut-lock of this character in which the nut is firmly looked upon the bolt and to allow for the expansion and contraction of the railjoint.

Another object of my invention is to provide a more simple, cheap, and effective nutlock of this character.

In the accompanying drawings, Figure 1 is a side elevation of the outside of a railjoint. Fig. 2 is a side elevation of the inside of a rail-joint. Fig. 3 is a top plan view of a rail-joint. Fig. 4 is a transverse sectional view taken on the line a; 00 of Fig. 3. Fig. 5 is an enlarged side elevation of one of the locking-plates, partly broken away; and Fig. 6 is an enlarged side elevation of the jointed portion of the locking-plate. Fig. 7 is a perspective view of the bolt used in my invention.

Referring now to the drawings, 1 and 2 represent the abutting ends of two rails, which, as shown, are provided with fish-plates 3 and 4, one on each side, and instead of being of the usual form they-are provided with outwardlyextending flanges 5 and 6, which extend outwardly over the base of the rail. The said fish-plates are also provided with the usual transverse bolts 7 for locking the same to the rail; but instead of having a rounded portion adjacent the head the bolt is of an oval shape, as indicated at 9, for the purpose hereinafter described.

My improved lock consists of an elongated plate 10,which is provided adjacent one end with a downwardly-depressed portion 11, having a flat upper face 12, which engages the lower edge 0 the nut when in position, and the flat lower edge 13 engages the upper face of the flange of the fish-plate. The inner face of said depressed portion is beveled at 14, making the same of a broader wedgeshape in top plan view, the broadest portion of the same being the extreme outer end. The opposite end of the plate is provided with an enlarged portion 15, which has an elongated lower flat edge 16, which is in a plane with the lower flat edge 14 of the opposite end. The enlarged portion 15 is formed at an angle to the plate 10 and is provided with an elongated oval opening 17, through which the oval portion 9 of the bolt passes, said opening being of a length greater than that ofthe width of the bolt, as will be hereinafter more fully described.

The bolts in a rail-joint of this character are inserted alternately from opposite sides of the rail, and on each side of the rail there is a bolt-head and then a nut. The plates 10 are of difierent lengths, as I shall now proceed to describe.

The bolt 7 passes through the elongated opening cated on the left of Fig. 3, and the bolt passes through the fish-plate and the rail and the nut 19 is placed thereon and tightened until the bent portion 15 has been drawn comparatively tight against the fish-plate, and the opposite end has been drawn in so that the beveled face 14 rests firmly against the fishplate, thus allowing of the expansion and contraction of the rail and fish-plate without affecting or loosening the nut, as the nut is held firmly against the fish-plate by the s ring action of the portion 15 of the plate.

he next bolt is inserted from the opposite side of the rail in precisely the same manner except that the plate 10 is of a length sufficient to extend under the nut of the first bolt. The lock-plates are arranged in this manner throughout the joint until the end is reached. This arrangement, it will be clearly seen, leaves the last nut 20 on the right of the joint without any fastening means, and in order to provide means for locking this nut I provide a double fastener 21, which has pivoted at 22 a member 23, which is held by a spring 24, said member 23 having an inwardly-extending portion 25, which is adapted to engage the fish-plate and hold the member 23 in the position shown in Fig. 3. The said member 23 is held in the position shown in dotted lines to allow of the turning of the nut for tightening the bolt, and also to allow of the removal of the last bolt, whereby the bolts may be removed as inserted.

The oval portion 9 of the bolt passing 17 of the short member 18, as indi through the oval opening 17 of the plate prevents the bolt from turning during the tight-- ening of the nut, but allows of a horizontal movement of the bolt caused by the expansion and contraction of the rails.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

A nut-lock comprising an elongated body portion having intermediate its ends a portion bent at an angle thereto and having an elongated oval opening through which passes the oval portion of one of the bolts of a railjoint, one end of the body portion being adapted to pass under the nut of the adj oining bolt and provided with a beveled inner face adapted to be drawn tightly against the fish-plate, and the opposite end of' the body portion having a pivoted member adapted to be swung under the nut of the adjoining bolt fin the opposite side of the first-mentioned olt.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

BERT W. DICKEN.

Witnesses:

JOHN M. RAWLEY, HENRY D. MAYROSE. 

